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Genes controlling low phytic acid in plants: Identifying targets for barley breeding
Book chapter

Genes controlling low phytic acid in plants: Identifying targets for barley breeding

H. Ye, C. Li, M. Bellgard, R. Lance and D. Wu
Advance in Barley Sciences: Proceedings of 11th International Barley Genetics Symposium, pp.185-198
Springer Netherlands
2012
DOI: https://doi.org/10.1007/978-94-007-4682-4_16
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Abstract

Phytic acid (myo-inositol 1, 2, 3, 4, 5, 6-hexakisphosphate) is the most abundant form of phosphorus in plant seeds. It is indigestible by both humans and nonruminant livestock and can contribute to human mineral deficiencies. The degradation of phytic acid in animal diets is necessary to overcome both environmental and nutritional issues. The development of plant cultivars with low phytic acid content is therefore an important priority. More than 25 low-phytic acid mutants have been developed in rice, maize, soybean, barley, wheat, and bean, from which 11 genes, belonging to six gene families, have been isolated and sequenced from maize, soybean, rice, and Arabidopsis. Forty-one members of the six gene families were identified in the rice genome sequence. A survey of genes coding for enzymes involved in the synthesis of phytic acid identified candidate genes for the six barley mutants with low phytic acid through comparison with syntenic regions in sequenced genomes.

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